/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.flink.table.functions.hive.util;

import org.apache.hadoop.hive.ql.exec.UDF;

import java.util.List;

/**
 * Test array in Hive UDF.
 */
public class TestHiveUDFArray extends UDF {
	public TestHiveUDFArray() {
	}

	public Integer evaluate(List<Double> a) {
		if (a == null) {
			return null;
		} else {
			Integer total = 0;

			for (Double e : a) {
				if (e != null) {
					total += e.intValue();
				}
			}

			return total;
		}
	}

	public Integer evaluate(int base, List<Double> a) {
		if (a == null) {
			return null;
		} else {
			Integer total = 0;

			for (Double e : a) {
				if (e != null) {
					total += e.intValue();
				}
			}

			return total + base;
		}
	}

	public Integer evaluate(int base, List<Double> a, List<Double> b) {
		if (a == null) {
			return null;
		} else {
			Integer total = 0;

			for (Double e : a) {
				if (e != null) {
					total += e.intValue();
				}
			}

			for (Double e : b) {
				if (e != null) {
					total += e.intValue();
				}
			}

			return total + base;
		}
	}
}
